AirHint found the following cheapest return flights from Edmonton (YEG) to Chicago (ORD) in August 2025 (see full year).

Return flights

20 Aug - 27 Aug	WestJet	direct
30 Aug - 03 Sep	United
20 Aug - 20 Aug	Delta	direct
29 Aug - 04 Sep	United
20 Aug - 24 Aug	WestJet
21 Aug - 25 Aug	WestJet
25 Aug - 30 Aug	WestJet
21 Aug - 28 Aug	WestJet
30 Aug - 03 Sep	Air Canada	direct
20 Aug - 24 Aug	Air Canada	direct

Also check the deals for one-way flights from Edmonton to Chicago in August.

The deals are updated regularly. The prices may go up as tickets are purchased by other travellers. Only the cheapest flights are offered. Select a price to book and secure these cheap prices.

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Cheapest return flights from Edmonton to Chicago in August from 138€

Return flights